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Finding the Third Proportional to 7,836,491.50 and 16,621,172.50

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Solution

The third proportional to 7,836,491.50 and 16,621,172.50 is: 35,253,451.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,836,491.50 : 16,621,172.50 = 16,621,172.50 : x
  2. Step 2: Convert to fraction form
    7,836,491.50/16,621,172.50 = 16,621,172.50/x
  3. Step 3: Cross multiply
    7,836,491.50x = 16,621,172.50 × 16,621,172.50
  4. Step 4: Simplify right side
    7,836,491.50x = 276,263,375,274,756.25
  5. Step 5: Solve for x
    x = 276,263,375,274,756.25/7,836,491.50
  6. Step 6: Final answer
    x = 35,253,451.79

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.